package com.atguigu.lease.web.app.service.impl;


import com.aliyun.dysmsapi20170525.models.SendSmsRequest;
import com.atguigu.lease.common.constant.RedisConstant;
import com.atguigu.lease.common.exception.LeaseException;
import com.atguigu.lease.common.jwt.JwtUtil;
import com.atguigu.lease.common.result.ResultCodeEnum;
import com.atguigu.lease.model.entity.SystemUser;
import com.atguigu.lease.model.entity.UserInfo;
import com.atguigu.lease.model.enums.BaseStatus;
import com.atguigu.lease.web.app.service.LoginService;
import com.atguigu.lease.web.app.service.UserInfoService;
import com.atguigu.lease.web.app.vo.user.LoginVo;
import com.atguigu.lease.web.app.vo.user.UserInfoVo;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import io.jsonwebtoken.Claims;
import org.apache.commons.lang3.ObjectUtils;
import org.apache.el.parser.Token;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;
import com.aliyun.dysmsapi20170525.Client;

import java.util.Random;
import java.util.concurrent.TimeUnit;


@Service
public class LoginServiceImpl implements LoginService {
    @Autowired
    private RedisTemplate<String,Object> redisTemplate;
    @Autowired
    private Client client;
    @Autowired
    private UserInfoService userInfoService;

    @Override
    public void sendCode(String phone) throws Exception {
        String key = RedisConstant.APP_LOGIN_PREFIX+ phone;
        Boolean is = redisTemplate.hasKey(key);
        if(is){
            throw  new LeaseException(ResultCodeEnum.APP_SEND_SMS_TOO_OFTEN);
        }
        Random random = new Random();
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < 6; i++) {
            sb.append(random.nextInt(10));
        }
        SendSmsRequest sendSmsRequest = new SendSmsRequest();
        sendSmsRequest.setPhoneNumbers(phone);
        sendSmsRequest.setSignName("阿里云短信测试");
        sendSmsRequest.setTemplateCode("SMS_154950909");
        sendSmsRequest.setTemplateParam("{\"code\":\"" + sb.toString() + "\"}\n");
        client.sendSms(sendSmsRequest);
        redisTemplate.opsForValue().set(key,sb.toString(),RedisConstant.APP_LOGIN_CODE_RESEND_TIME_SEC, TimeUnit.SECONDS);
    }

    @Override
    public String login(LoginVo loginVo) {
        if(ObjectUtils.isEmpty(loginVo.getPhone())){
            throw new LeaseException(ResultCodeEnum.APP_LOGIN_PHONE_EMPTY);
        }
        if(ObjectUtils.isEmpty(loginVo.getCode())){
            throw new LeaseException(ResultCodeEnum.APP_LOGIN_CODE_EMPTY);
        }
        String key = RedisConstant.APP_LOGIN_PREFIX+loginVo.getPhone();
        String code =(String) redisTemplate.opsForValue().get(key);
        if(code == null){
            throw new LeaseException(ResultCodeEnum.APP_LOGIN_CODE_EXPIRED);
        }
        if(!code.equals(loginVo.getCode())){
            throw  new LeaseException(ResultCodeEnum.APP_LOGIN_CODE_ERROR);
        }
        LambdaQueryWrapper<UserInfo> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(UserInfo::getPhone,loginVo.getPhone());
        UserInfo userInfo = userInfoService.getOne(queryWrapper);
        if(userInfo == null){
            userInfo = new UserInfo();
            userInfo.setPhone(loginVo.getPhone());
            userInfo.setStatus(BaseStatus.ENABLE);
            userInfo.setNickname("佚名"+loginVo.getPhone().substring(5));
            userInfoService.save(userInfo);
        }
        if(userInfo.getStatus().equals(BaseStatus.DISABLE)){
            throw  new LeaseException(ResultCodeEnum.APP_ACCOUNT_DISABLED_ERROR);
        }
        return JwtUtil.createToken(userInfo.getId(),userInfo.getPhone());


    }

    @Override
    public UserInfoVo info(String accessToken) {
        Claims claims = JwtUtil.parseToken(accessToken);
        long userId = Long.parseLong(claims.get("userId") + "");
        UserInfo userInfo = userInfoService.getById(userId);
        return new UserInfoVo(userInfo.getNickname(),userInfo.getAvatarUrl());
    }
}
